/*
 * Copyright 2012-2017 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.wdb.common.configurer.message;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.boot.context.properties.EnableConfigurationProperties;
import org.springframework.context.MessageSource;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.support.ResourceBundleMessageSource;
import org.springframework.util.StringUtils;

import java.nio.charset.Charset;

@Configuration
@EnableConfigurationProperties
@ConfigurationProperties(prefix = "i18n")
public class MessageSourceConfigurer {
    private String basename;

    private static final String DEFAULT_BASENAME = "messages";

    private final Logger logger = LoggerFactory.getLogger(getClass());

    @Bean
    public MessageSource messageSource() {
        ResourceBundleMessageSource messageSource = new ResourceBundleMessageSource();
        //set default basename
        messageSource.setBasename(DEFAULT_BASENAME);
        //set customized basename
        if (StringUtils.hasText(this.basename)) {
            messageSource.setBasenames(StringUtils.commaDelimitedListToStringArray(
                    StringUtils.trimAllWhitespace(this.basename)));

            messageSource.addBasenames(DEFAULT_BASENAME);
        }
        //set other configurer
        messageSource.setUseCodeAsDefaultMessage(true);
        messageSource.setDefaultEncoding(Charset.forName("UTF-8").name());
        messageSource.setFallbackToSystemLocale(true);
        messageSource.setCacheSeconds(-1);
        messageSource.setAlwaysUseMessageFormat(true);

        if (logger.isDebugEnabled()) {
            logger.info("{}", "added i18n");
        }

        return messageSource;
    }

    public String getBasename() {
        return this.basename;
    }

    public void setBasename(String basename) {
        this.basename = basename;
    }
}
